devereaux



Lz# May 24 1927' w. c. DEVEREAUX DGGR LATCH Filed June 2, 1924 51m vanto:

mi; WAM Alda.; fvwm.

MM @Hol/c5447 rangements `of tiona'l view embodyingjmy invention applied thereto.

' adapted va vehicle doorhavmg a laterally extending l (not shown) to-hold the door in closed pin 5' extending' through latented May 24,- 1927.

Fien.

WILLIAM C. I)EVLERIJHTX,` OF DETROIT, MICHIGAN.

DOOR LATCH..

Application Vflied `June 2,

vThis invention relates vgmierally to latches and refers more particularly to vehicle [door latches having swingingly -mounted latch bolts which may be actuated from either 5 the' inside or the outside ofthe. vehicle.`

Oneof the essential object-slof the invent-louis to provide u strong and durable latch inl which the. swingiiighltch'bolt is provided with a slidably' mounted shank thatfis adapted to be dogged by either 'the inside diera-ting =mechzinism for the bolt 'or independent -lc'ey-operat'ed means 'for render-- ing the outside operating mechanism lor the bolt inoperative. f y

Another object is to provide means for automatically returnii'ig the dogI to inoperative position vwhen released" by either `the inside operating mechanism lor the bolt or the key-o )crateri means. Y

A fur-t er ob'ect is to' provide ay simple form of latch t'llatv can be manufactured at a comparatively low cost.

tures of construction, .combinations and `:tr-' parts as willbe more fully described and* articii'larly pointed out lin the ap ended ellaimls l In t e accompanying. drawing: l

-Fgure' 1- is a, Side elevation otaA latch embodying vmy invention;

FigurevQ is :mend elevation thereof;

Fifru're is a fragmentary 'horizontal secolie door with latchmechanism Figure 4L, is a.. sectional view taken on the .line l.t-/l'ot Figure 1;

Figiu'e 5 is a sectional view taken on the line 5-5 of Fig-ure l..v

Referring now to the drawing `in which like characters'oi reference designate corresponding parte throughout the several views, the numeral l vdesignates a caseplate that 1s' to bese'cured to the inner side ol flange Qljlmt is adapted tobel Secured to the outer edfe of the door. Extending through an opening 3 in the liangr 2 is a latch bolt el that is adapted to engage a suitable keeper .PO- Sition. .fThie holt is nel'erably pivote-d on a! parallel flanges-6 projecting inwardly vfrom Vthe upper and lonferedgcs of the opening 3 and is normally 'held in extended position for engagement with thelqeeper' by meu-ns of a lcoil spring 7 tivel above and lother objects in view'v the invention consists o-t certammovel feaf `ly in Figure l ci' 1924. semina. 717,349.

having arms 8 and 9 res the case plate undbolty s shown,l the' bolt Al preferably hollow and 'is provided 4with a pair ot parallel rearwardly. extendingllugs l() through `which extends-a suitable pin 1l that is adapted to engage a lateral extension tolimit the outward lpopthe' shank 13 sw'vnigmg movement of the bolt The shank 13 1s 'preferably sli'dably mounted on'v the inner lince of the case plate'between vstruck I out ears leland .is preferably provided at its forward end with vertical upstanding and depending projections.A 15` and '16 resped' y that are normali)7 held in engagement with theA flanges l0 by means of a helical spring l anchored on the case plate Thus, the flanges l0 limit the lforward' sliding movement of the shank 13 'and' the latter cooperates with the pin 1l to limit the-outward swinging movement of the bolt 4 For retreating the `bolt 4 to releasethe door,v I preferably provide an vinside operating lever 18 andan independently operable outside roll back 19.v As shown7 particularthe drawing, the Vlever-18 is pivoted at the lower end thereof to the inner face of the icase 'plate andfis provided with unintcrmediate offset-portionl 20 that is engagea'ble with 'a laterally projecting lug 2l on the shank 13 of the bolt, while the' roll back 19 is preferably non-rotatably secured to the operating shank22 of a, suit-y able 'rotatable handle 23 located outside of the vdoor and iss-,provided wtha cam that is engegeable with the depending projection 16 on the shank 13 of the bolt. Thus,v with this construction, the projection 16 on 'the kshank will be disngaged' from the cam 24 of the rollback when the leverl8 is-xnoved rearwardly to retract the bolt Likewise, the lug 2l will bedisengaged from the oil'- set portion back 19 is swung` rearwardly to retract `the bolt.

, 1 To enclose the .working parts of th'ejlatch,4 4I preferably -provideacoverplate 25l that aectively abutting 2U of the lever 18 when the roll by means 'of 13 and the ol'set portion 9.0 ot the lever 18.

In order that the outside operati ng handle may be rendered inoperative by the lever 18, I preferably provide a dog 29 that is'pivotc'alon the spacer 27 and is adapted to swing into engagement with the curved rear edge 3l) o't the projection l5 on the shank lll et the bolt. above the pivot is an extension 3l thutis adapted to he engaged directly by the inside operatinu lever 18 when the latter torwardlay. For` detachably holdingr the dog in engagement with the projection l5 on the bolt shank when the lever IS moved forwardly, I preferably provide a. suitable leaf spring 32 that is pr ferably permanently secured at the end to the spacer 2T by the screw 26 and projecls rearwardly across the lever 1-.8 insubstantial parallel relation to the. ease lplate l. To return the lever 18 in clogging position the spring is provided withaV laterally extending otlset portion 33 that is engageable with the correspondingly shaped recess or depression 34 in the lever.

In order that the outside operating handle 23 may be rendered inoperative by independent means located upon the inside ot the door, but operable lfrom the outside. of the door, I pieferaliily provide a .suitable cam 35 that is adapted to he rotated hy a keyo-perated. shank 36 into engagea-lent with thc` curved portion 3i' of the dog to swing the latter in rear of the projection l5 on the bolt shank. For holding the dog in proper posit-ion to be engaged by either the lever 18 or the cam 35, I preferably provide a suitable coil springv 238 that normally holds a shoulder 39 of the -dog against a struck out lug 40 on the. case plate. Thus, this spring will xmtomatieallv return the dog to normal position al'ter being released by either the lever or the cam From the' foregoing descriptionit will he readily apparent that thejbolt 4 may be retracted by operating either the lever ,i8 or the handle 23. It Wil-lalso be apparent that the outside operating handle ,may be rendered inoperative byinoving the dog 29 in rear of the projection l5 oth the bolt shank 13. Furthern'iore, this dog may be actuated by either the lever 18er the cam 35 on the key-operated shank 36. Thus, the door may be locked from either the inside or the outside thereof.

While it is believed that from the toregoing description the nature and advantages ofthe invention will be readily apparent. I desire to have it understood that l do not limit myself' to what is herein shown and described, and that such changes may -he resorted to when desired as Jfall within the scope ofwhat is claimed.

What I claimv as my invention is:

l.. In a latch, the combination ivi'th a latch bolt, of a shank in rear thereof having Projecting upwardly from the dog" moved a lateral projection operatively connected to the bolt for retracting the same, a member engageable with al projection on the shank for ope-latino` said bolt, and a pivoted dog positioned adjacent to said operating member and adapted to be moved thereby into lookin-g engagementivith said shank.

2f In a latch, he combination with a pivoted latch bolt having a shank, of a member engageablewith a projection on the shank for operating said bolt, and al spring-pressed dog positioned adjacent to said operating member and adapted to be moved thereby into .locking engagement with said shank.

In a latch, the combination with a pivoted latch bolt, of a slidably mounted shank operatively connected to the bolt, a .lever for operating said shank, and a sturing-pressed dog positioned adjacent to said lever and adapted to be-inoved thereby into locking engzwen'ient with said shank.

4. n a latch, the combination' 4with a. latch bolt having a shank, et' a pivoted dog, au operating member for the bolt movable in one direction [for moving the dog into locking engagement with the shank ot' said bolt, and means independent ot the operating member for automatically returning the dog to normal position when the operating niember is moved in the opposite direction.

In a latch, the combination with a pivoted latch bolt, of a slidably mounted shank operatively connected to -said bolt, ot? a pivoted dog, an operating member for the bolt movable in one ,direction for moving. the dog into locking engagement with the shank of said bolt, and a yield-able member independent ot the operating member tor automatically returning the dog to normal position when the operating member is moved in the opposite direction;

6. In a latch, the combination with a pivoted latch bolt, of a slide-bly mounted shank operatively connected to said bolt, a member engageable with a projection on said shank for retracting said bolt, a key-open ated member, and means adapted to be actuated by either of said members for clogging said shank.

7 Inl a hitch, the combination with a pivoted latch bolt, ot a slidabl'y mounted shank operatively Connected to said bolt, a member engageable with a projection on said shank for retracting said bolt, a key-open ated member, and a spring-pressed dog` adapted to be actuated by either of said members for clogging said shank.

8. In a latch, the combination ivi-th a case plate having a flange provided with an opening, flan ges projecting rearwardly from the upper and lower ed-ges ot said opening.

`a. latch bolt in said opening pivoted onthe rearwardly projecting flanges, a pin carried by said. bolt, and means for actuating. said bolt, said means including a shank slidably Bil lll)

lill) mounted. on said case plate and having a lateral extension engageable withsaid pin. 9. In a latch, the combination with a case plate having a flange provided with an opening, [langes projecting rearwardly from the upper and lower edges otv said opening', a latch bolt in said openingrearwardly projecting flanges, a pin carried by said bolt, means for actua-ting said bolt including a. shank slidably mounted on the caseplate-nnd having' an extension 'engageable-with said pin, a projection on said .shank cngageable with one of said rearwardly' extendingl llana-es for limitingy the forward movement of said shank, a horizontal member carried by said case plate andhav.-

inva cam engageable with said' projection, a ug on said shank, and a vertical member carried 'by said case plate and engageable with said-lug.

l0. In a latch, the combination with a movable bolt, olf means for actiiatine; said holt. including ashank connected to the bolt,

a lug on the shank, a vertical member engageable with the lug, projectionson the shank, a horizontal member having,r a cam engageable with one of said projections, and means for rende-ring said horizontal member inoperative includingl a dog engageable with the other of said projections, said dogl being adapted rto he actuated directly by said vertical member said projection.

ll. In a latch, the combination with a movable bolt, of means for actuating said.

bolt including a shank connected to the bolt, a lug' on. the shank, a lever engageable with the lug, projections on the shank, a roll back having a cam Aen,f ,lfiareza,ble with one of said projections, and means .for rendering said roll hack inoperative including a member engrag'eable with the other ofsaid projections.- said member being adapted. to j be actuated directly by said lever into engagement with said projection.`

l2 In a latch, the combination with a case plate and a latch bolt pivoted on said case plate, of .means for actuating said bolt including a shank connected tothe bolt,.a lug on the shank, a. lever carried by the case plate engageal'ile with the lug, projections on the shank. and a rollback carried by the case plate having' a cam engageable with one of said projections, ya key-operated cam carried by said plate, and means adapted to be actuated by either said -cam or said lever tor flogging said shank to render the roll back inoperative.

13. In" a latch, the combination with a case plate and a latch bolt pivoted on said rase plate, of means tor includingr a shank connected to the bolt, a lug on the shank,a lever carried by the case plate engageable with the lug, projections on the shank, and a roll back carried by the pivot-ed on the- .gageablc with .pivotod'on the case plate engageable with into engagement with Ya lever pivoted actuating said bolt.

case plate Vhaving a cam engageablewith one of sal projections, key-operated -cam carried by said plate, and a pivoted dog-adapt-` ed to be actuated by either said cam or1said lever for (logging said lshank to render `the rolll hack inoperative..

let. tn alatch, the combination vwith acuse plate and a latch holt carried thereby, (it means t'or acl nat-ing the bolt including a shank slidabl \r mounted on the case plate and connected `to the bolt, a luc on the shank, and an operating handle en; ,eje-able with the lng, a j'nojection on the shank, and means jlor (logging-the .shank including' n member carried by the ca e plate adapted lo be moved directly b v thcsaid handle into engagement with saidprojection.

l5. ln. a. latch. the combination with a case plate and a latch bolt carried thereby, ot means for actuating saidholt including a shank slidabl'y mounted on the case plate and connected to the bolt, `a lng on the shank, a. lever carried by the case plate engageable with the lug, projections on -the shank, a roll hack carried by `said case plate 'and en one of said projections, a dog thc other oi' said projertions, said dog being adapted to be actuated directly by said lever, and means. carried by the pivot torsaid dog tor retaining said lever in clogging; position. l0; ln a latch, the combination with a case plate and a latch bolt carried thereby, oil means for actuatingsaid bolt including a shank slidahly n'iounted on thecase plate and connected to the bolt, a lug" on the shank, the case plate engageable a lover carried by `with the lug, projections on the shank. a

roll back carried by said case plate and engag-cable with onev ot said projections, ra dog;

jiivoted on the case plate engageable with said projections, said dog bein;Y

the other oi1 adapted ,to beactnated directly by -said lever,

v und a yieldable member having a lateral` extension Vengageable AWith-.the recess iu the lever for retaining the latter in clogging position. l

l. fln a latch` the combination With a case plate and a latch bolt carried thereby, ot' means for zwtuating,I said bolt including' shank connected thereto, a lug' on the shank, gagcablenrith the lug. projections on Athe shank,l a rollback carried by the case plate enlgjngcable' with one ot' said projections, a dog pivoted on the case plate engageable with the other of said projections, said dog being,r adapted tov be actuated directly bv said lever, a stop t'or said clog, and yieldable means normally holding said dog' against said stop. A i

18. ln a latch, the combination with a case plate and a latch bolt carried thereby, ot' meansjfor actuating 'the .bolt including a shank connected thereto, a lug on the ou the case plate and enllii shank; :Never-pivoted on the case plate and. engageablewith `the lng, projections on the shank,- n roll back worried by the case plate engagenble with one o'l said Iprojections, n. clog -pivoted on.` the case plate eri-gagenhle with the other of said projections, :i lng on thevcase pluto limiting the sn'ingingl inmorent: foi' .said dog in one direction, und o yieldnble member carried by 'the @use plat-e normally holding said clog against said lng.

.19. In n hitch, the combination with :i latch bolt. :i shank connected thereto, zuid a rolll back engngenble with the shank for retructing the. bolt` of n dog engrzlgeable with i' the shank for vrendering the roll back inopi ernt-ive, and :i .vert-ical member alternately engagenble with the shank :nifl clog respectively .for ietmcting the bolt ond moving the (log into operativel dogging engagement with the-shank, v i

2l). .ln n lati-11,: the combination with a. hilt-.h bolt, n slmnlc connected thereto, .and o roll hoek engragenble with the shank for veli-acting the boltof u dog engngeaible with the elmnli 'for rendering' the roll hack inoperative, mid n vertical member for rel'raoting -the bolt cngngenble directly with the dog for moving' thesnme into position with respect to the Shu-nk and u yieltlable .member engx-igrenble with said vertical memberffor rlel'nrlmbLy horlingsmid (log inwiloggi-ng pos; tion.

In ieslini-onlif whereof l affix Inv signature,

WILLIAM C.. DEVE'REAUX. 

